The ordered pair that is the best estimate for the solution of the system of equations is (7, 1/2)
The given system of equations is:
Equate equations (1) and (2)
Solve for x in the equation above
Substitute x = 7 into equation (1)
The ordered pair that is the best estimate for the solution of the system of equations is (7, 1/2)
Learn more on system of equations here: brainly.com/question/13729904
twice the number is multiplying
so it would be 2c then add 4 more
so 2c+4 is the correct equation.
Answer is B